Build group grocery carts through a Signal-based agent
A self-hosted Signal agent drafts a grocery list from past orders, lets group members edit it, then logs into the store and builds and validates the cart; the author finishes checkout manually. Task: The author deployed a self-hosted agent on Signal with whitelisted group access. The agent drafts grocery lists from past orders, allows group edits, and uses a custom Puppeteer-based browser tool to log in and build the cart. The human manually completes the final checkout steps to retain spending control.; tools: custom-built or unnamed agent. Human role: The author manually performs the final checkout steps (login and last two clicks) to retain spending control.; limitations: Requires self-hosting infrastructure and Signal API access. The browser tool is custom-built (~300 lines of Puppeteer code). Security risks exist if spending automation is enabled; currently, manual intervention is the only safeguard. Source is a single user anecdote..
Tools
custom-built or unnamed agent
Published on Agent Work Atlas:
Overview
A self-hosted Signal agent drafts a grocery list from past orders, lets group members edit it, then logs into the store and builds and validates the cart; the author finishes checkout manually.
Workflow
The author deployed a self-hosted agent on Signal with whitelisted group access. The agent drafts grocery lists from past orders, allows group edits, and uses a custom Puppeteer-based browser tool to log in and build the cart. The human manually completes the final checkout steps to retain spending control.
Reported result
Cart building works end-to-end, but checkout remains manual. The author explicitly withheld spending power from the agent, performing the last two clicks personally. No metrics on time saved or error rates are provided in the source.
Human role
The author manually performs the final checkout steps (login and last two clicks) to retain spending control.
Limitations
Requires self-hosting infrastructure and Signal API access. The browser tool is custom-built (~300 lines of Puppeteer code). Security risks exist if spending automation is enabled; currently, manual intervention is the only safeguard. Source is a single user anecdote.
Try it
Act as a technical lead implementing a grocery automation pilot. 1. Set up a self-hosted Signal agent with whitelisted group access. 2. Configure the agent to fetch past orders from [replaceable: local CSV or store API] to draft a list. 3. Enable group members to edit the list via Signal messages. 4. Implement a Puppeteer-based browser tool to log into [replaceable: store URL] and add items to the cart. 5. Stop before checkout; require human confirmation for payment. 6. Measure: Time from list draft to cart ready vs. manual process. 7. Dry run with a dummy account first. Do not automate payment.
Source reports are not independently verified. Publication date is the catalog publication date, not the original article date.